{
 "ocl_version": "0.1.0",
 "name": "Chemin de Panisse",
 "slug": "chemin-de-panisse",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 34.06316324349348,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 224.0,
   "end_distance_m": 226.0,
   "start_elevation_m": 75.32490976811728,
   "end_elevation_m": 76.00617303298715,
   "min_gradient_pct": -2.66105195688624
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 34.13572004116124,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 224.0,
   "end_distance_m": 227.0,
   "start_elevation_m": 75.32490976811728,
   "end_elevation_m": 76.34898136935212,
   "min_gradient_pct": -0.8348621892118047
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 33.663295736229486,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 224.0,
   "end_distance_m": 229.0,
   "start_elevation_m": 75.32490976811728,
   "end_elevation_m": 77.00807455492875,
   "min_gradient_pct": 0.20047730094461258
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 33.53017886479009,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 224.0,
   "end_distance_m": 234.0,
   "start_elevation_m": 75.32490976811728,
   "end_elevation_m": 78.67792765459629,
   "min_gradient_pct": 6.575387588873838
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 32.25640984980302,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 221.0,
   "end_distance_m": 241.0,
   "start_elevation_m": 74.42436469433838,
   "end_elevation_m": 80.87564666429898,
   "min_gradient_pct": 9.31766520461963
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 30.710119881913442,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 217.0,
   "end_distance_m": 242.0,
   "start_elevation_m": 73.44975802578304,
   "end_elevation_m": 81.1272879962614,
   "min_gradient_pct": 9.938017994176107
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 28.79802085936598,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 191.0,
   "end_distance_m": 241.0,
   "start_elevation_m": 66.476636234616,
   "end_elevation_m": 80.87564666429898,
   "min_gradient_pct": 12.10683608457201
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 25.07826833670496,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 159.0,
   "end_distance_m": 259.0,
   "start_elevation_m": 58.57799014099766,
   "end_elevation_m": 83.65625847770262,
   "min_gradient_pct": 13.988313856406556
  }
 ],
 "shape": {
  "ascent_concentration": 0.361,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 216.0,
  "shape_class": "sustained"
 },
 "length_m": 334.23306161881936,
 "start_elevation_m": 32.732523636480416,
 "end_elevation_m": 95.6022617563095,
 "endpoint_gain_m": 62.86973811982909,
 "overall_gradient_pct": 18.810149365633293,
 "accumulated_ascent_m": 62.946244405494895,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 33.663295736229486,
   "start_distance_m": 224.0,
   "end_distance_m": 229.0,
   "midpoint_distance_m": 226.5,
   "start_elevation_m": 75.32490976811728,
   "end_elevation_m": 77.00807455492875,
   "start_xy": [
    1016488.7054209389,
    6284308.4589315
   ],
   "end_xy": [
    1016485.5273853533,
    6284304.5988680525
   ]
  },
  "max_10m": {
   "gradient_pct": 33.53017886479009,
   "start_distance_m": 224.0,
   "end_distance_m": 234.0,
   "midpoint_distance_m": 229.0,
   "start_elevation_m": 75.32490976811728,
   "end_elevation_m": 78.67792765459629,
   "start_xy": [
    1016488.7054209389,
    6284308.4589315
   ],
   "end_xy": [
    1016482.3493497677,
    6284300.738804606
   ]
  },
  "max_20m": {
   "gradient_pct": 32.25640984980302,
   "start_distance_m": 221.0,
   "end_distance_m": 241.0,
   "midpoint_distance_m": 231.0,
   "start_elevation_m": 74.42436469433838,
   "end_elevation_m": 80.87564666429898,
   "start_xy": [
    1016490.6122422902,
    6284310.7749695685
   ],
   "end_xy": [
    1016477.7016203731,
    6284295.508270787
   ]
  },
  "max_25m": {
   "gradient_pct": 30.710119881913442,
   "start_distance_m": 217.0,
   "end_distance_m": 242.0,
   "midpoint_distance_m": 229.5,
   "start_elevation_m": 73.44975802578304,
   "end_elevation_m": 81.1272879962614,
   "start_xy": [
    1016492.7589409325,
    6284314.134737734
   ],
   "end_xy": [
    1016477.0212917032,
    6284294.77536363
   ]
  },
  "max_50m": {
   "gradient_pct": 28.79802085936598,
   "start_distance_m": 191.0,
   "end_distance_m": 241.0,
   "midpoint_distance_m": 216.0,
   "start_elevation_m": 66.476636234616,
   "end_elevation_m": 80.87564666429898,
   "start_xy": [
    1016505.4533904485,
    6284336.822496747
   ],
   "end_xy": [
    1016477.7016203731,
    6284295.508270787
   ]
  },
  "max_100m": {
   "gradient_pct": 25.07826833670496,
   "start_distance_m": 159.0,
   "end_distance_m": 259.0,
   "midpoint_distance_m": 209.0,
   "start_elevation_m": 58.57799014099766,
   "end_elevation_m": 83.65625847770262,
   "start_xy": [
    1016521.239674574,
    6284364.644109749
   ],
   "end_xy": [
    1016465.358625322,
    6284282.407206523
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": 0.20047730094461258,
   "start_distance_m": 116.0,
   "end_distance_m": 121.0,
   "midpoint_distance_m": 118.5,
   "start_elevation_m": 53.74092475943175,
   "end_elevation_m": 53.75094862447898,
   "start_xy": [
    1016489.6562506687,
    6284372.878389971
   ],
   "end_xy": [
    1016494.616537864,
    6284372.249461565
   ]
  },
  "min_10m": {
   "gradient_pct": 6.575387588873838,
   "start_distance_m": 114.0,
   "end_distance_m": 124.0,
   "midpoint_distance_m": 119.0,
   "start_elevation_m": 53.49759296544597,
   "end_elevation_m": 54.15513172433335,
   "start_xy": [
    1016490.0419006983,
    6284374.215424481
   ],
   "end_xy": [
    1016497.5751233693,
    6284372.087375394
   ]
  },
  "min_20m": {
   "gradient_pct": 9.31766520461963,
   "start_distance_m": 115.0,
   "end_distance_m": 135.0,
   "midpoint_distance_m": 125.0,
   "start_elevation_m": 53.651010056542304,
   "end_elevation_m": 55.51454309746623,
   "start_xy": [
    1016489.4891797722,
    6284373.382058068
   ],
   "end_xy": [
    1016508.1187937717,
    6284375.222820036
   ]
  },
  "min_25m": {
   "gradient_pct": 9.938017994176107,
   "start_distance_m": 114.0,
   "end_distance_m": 139.0,
   "midpoint_distance_m": 126.5,
   "start_elevation_m": 53.49759296544597,
   "end_elevation_m": 55.982097463989994,
   "start_xy": [
    1016490.0419006983,
    6284374.215424481
   ],
   "end_xy": [
    1016511.9529804067,
    6284376.362562485
   ]
  },
  "min_50m": {
   "gradient_pct": 12.10683608457201,
   "start_distance_m": 110.0,
   "end_distance_m": 160.0,
   "midpoint_distance_m": 135.0,
   "start_elevation_m": 52.73177879705856,
   "end_elevation_m": 58.785196839344565,
   "start_xy": [
    1016492.252784403,
    6284377.5488901315
   ],
   "end_xy": [
    1016520.782730909,
    6284363.754614114
   ]
  },
  "min_100m": {
   "gradient_pct": 13.988313856406556,
   "start_distance_m": 59.0,
   "end_distance_m": 159.0,
   "midpoint_distance_m": 109.0,
   "start_elevation_m": 44.58967628459111,
   "end_elevation_m": 58.57799014099766,
   "start_xy": [
    1016531.4329076055,
    6284409.640081311
   ],
   "end_xy": [
    1016521.239674574,
    6284364.644109749
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 34.06316324349348,
   "start_distance_m": 224.0,
   "end_distance_m": 226.0,
   "midpoint_distance_m": 225.0,
   "start_elevation_m": 75.32490976811728,
   "end_elevation_m": 76.00617303298715,
   "start_xy": [
    1016488.7054209389,
    6284308.4589315
   ],
   "end_xy": [
    1016487.4342067046,
    6284306.914906121
   ]
  },
  "max_3m": {
   "gradient_pct": 34.13572004116124,
   "start_distance_m": 224.0,
   "end_distance_m": 227.0,
   "midpoint_distance_m": 225.5,
   "start_elevation_m": 75.32490976811728,
   "end_elevation_m": 76.34898136935212,
   "start_xy": [
    1016488.7054209389,
    6284308.4589315
   ],
   "end_xy": [
    1016486.7985995875,
    6284306.142893432
   ]
  }
 },
 "diagnostic_note": "Windows <=3 m are at raster-noise scale (1-sigma raster noise alone is roughly +/-7 pp at 2 m and +/-5 pp at 3 m on a 1 m DTM). Diagnostic use only: never a headline or ranking value.",
 "quality_summary": {
  "overhead_obstruction": {
   "obstruction_threshold_m": 2.0,
   "obstructed_fraction": 0.039,
   "obstruction_max_height_m": 7.62,
   "flagged_windows_m": []
  },
  "review": [],
  "extent": [
   "may_start_earlier",
   "may_continue_beyond_end"
  ]
 },
 "provenance": {
  "analysis_version": "0.1.0",
  "sample_interval_m": 1.0,
  "interpolation": "bilinear",
  "smoothing": "none",
  "gradient_windows_m": [
   5.0,
   10.0,
   20.0,
   25.0,
   50.0,
   100.0
  ],
  "diagnostic_windows_m": [
   2.0,
   3.0
  ],
  "elevation_crs": "EPSG:2154",
  "elevation_resolution_m": 0.5,
  "elevation_tiles": [
   "data/cache/fr/ign-lidarhd_dtm_E1016-N6284_0m5.tif"
  ],
  "calculated_at": "2026-09-17T02:31:12+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/block-batch-fr-alps4.osm.pbf",
  "osm_snapshot": "",
  "run_id": "fr-alps4",
  "elevation_provider": "IGN LiDAR HD MNT 0.5 m",
  "elevation_licence": "Licence Ouverte / Open Licence 2.0 (Etalab) \u2014 \u00a9 IGN, LiDAR HD (MNT/MNS), data.geopf.fr; reproduction autoris\u00e9e avec mention de la source et de la date",
  "elevation_dataset": "LiDAR HD \u2014 MNT (sol) et MNS (surface), 0,50 m (Institut national de l'information g\u00e9ographique et foresti\u00e8re), RGF93 / Lambert-93 EPSG:2154, altitudes IGN69",
  "elevation_vertical_datum": "IGN69",
  "elevation_tile_ids": [
   "E1016-N6284"
  ],
  "elevation_blocks": [
   "22LHD6RQ@2025-03-13"
  ],
  "ign_dalles": [
   "LHD_FXX_1016_6285_MNT_O_0M50_LAMB93_IGN69"
  ],
  "ign_missions": [
   "22LHD6RQ"
  ],
  "ign_editions": [
   "2025-03-13"
  ],
  "ign_dsm_edition": {
   "LHD_FXX_1016_6285_MNT_O_0M50_LAMB93_IGN69": "2025-03-13"
  },
  "climb_origin": "discovered",
  "structure_own_ways": "none \u2014 the route carried no way list; own decks unmasked",
  "carriageway": {
   "stations": 20,
   "stations_resolved": 20,
   "width_median_m": 5.5,
   "width_p10_m": 4.67,
   "width_min_m": 3.5,
   "width_max_m": 10.0,
   "bounded_share": 0.2,
   "unbounded_share": 0.8,
   "confidence_median": 0.0,
   "width_median_bounded_m": 4.38,
   "window_m": [
    217.0,
    242.0
   ],
   "width_at_max25_m": 5.5,
   "window_stations": 7,
   "single_track": false,
   "single_track_rule": "PROVISIONAL (2026-09-15): width_p10_m <= 3.0 m with bounded_share >= 0.6; recorded, not a rule",
   "status": "ok",
   "source": "dtm",
   "station_m": 25.0,
   "window_station_m": 5.0,
   "halfwidth_m": 6.0,
   "step_m": 0.25,
   "level_tol_m": 0.12,
   "break_min_m": 0.3,
   "stations_failed": 0,
   "hedge_to_hedge": {
    "stations": 20,
    "stations_resolved": 20,
    "width_median_m": 5.25,
    "width_p10_m": 2.25,
    "width_min_m": 1.5,
    "width_max_m": 10.25,
    "bounded_share": 0.8,
    "unbounded_share": 0.2,
    "confidence_median": 1.0,
    "width_median_bounded_m": 4.62,
    "window_m": [
     217.0,
     242.0
    ],
    "width_at_max25_m": 3.0,
    "window_stations": 7,
    "status": "ok",
    "source": "dsm",
    "station_m": 25.0,
    "window_station_m": 5.0,
    "halfwidth_m": 6.0,
    "step_m": 0.25,
    "level_tol_m": 0.5,
    "break_min_m": 0.3,
    "stations_failed": 0
   }
  },
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing"
 },
 "area": {
  "place": "P\u00e9gomas",
  "county": "Alpes-Maritimes",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}